Anti-hemolytic, antibacterial and anti-cancer activities of methanolic extracts from leaves and stems of Polygonum odoratum
Journal Title: Asian Pacific Journal of Tropical Biomedicine - Year 2018, Vol 8, Issue 12
Abstract
Objective: To investigate anti-hemolytic, antibacterial and anti-cancer activities of leaf and stem extracts from Polygonum odoratum. Methods: Leaves and stems of Polygonum odoratum were extracted using methanol and their anti-hemolytic activity was assessed using 2, 2′-Azobis (2-methylpropionamidine) dihydrochloride which is known to generate free radical damage on cell membranes of red blood cells. This damage, represented by hemolysis, was measured using spectrophotometry. Antibacterial activity was tested by using a broth microdilution method to find minimal inhibitory concentrations against eight bacterial strains. Anti-cancer activity of the extracts was evaluated against a human promyelocytic leukemic cell line (HL- 60) by using MTT assay for cell viability and flow cytometry for apoptosis induction and cell cycle analysis. Results: Both leaf and stem extracts have anti-hemolytic activity. The results showed a significantly increased percentage of inhibition in a concentration-dependent manner. Interestingly, the leaf extract showed anti-hemolytic activity to a greater extent than the stem extract. Antibacterial activity of the extracts, as indicated by their minimal inhibitory concentration, using 12.5, 50, 25, 25 μg/mL, was measured against Staphylococcus epidermidis, Enterococcus faecium, Enterococcus faecalis and Staphylococcus aureus. The leaf extracts also exhibited anti-cancer activity, demonstrated by significantly decreased cell viability of human promyelocytic cells (HL-60), with an IC50 of (350.00±1.85) μg/mL for 48 h and (38.00±0.92) μg/mL for 72 h. Additionally, HL-60 became apoptotic and accumulated in G1–phase after 48 hours of treatment. Conclusions: The extracts of Polygonum odoratum exhibit potential anti-hemolytic activity. They also have antibacterial activity by inhibiting growth of Gram-positive bacteria. The leaf extract shows anti-cancer activity against HL-60 to a greater extent than the stem extract, causing decreased viability, increased G1-phase accumulation and apoptosis induction.
Authors and Affiliations
Nittaya Chansiw, Narisara Paradee, Kamonnaree Chotinantakul, Somdet Srichairattanakool
Keywords
Related Articles
- EP ID EP441359
- DOI 10.4103/2221-1691.248094
- Views 71
- Downloads 0
Anti-quorum sensing and anti-biofilm formation activities of plant extracts from South Korea
Objective: To investigate anti-quorum sensing (anti-QS) and anti-biofilm formation (anti- BF) activities of the ethanol extracts of 388 plants. Methods: The anti-QS activity of the plant extracts was evaluated by disc-di...
Chalcone analogue as potent anti-malarial compounds against Plasmodium falciparum: Synthesis, biological evaluation, and docking simulation study
Objective: To investigate in vitro antimalarial activity of chalcone derivative compounds against Plasmodium falciparum 3D7 (Pf3D7) strain and in silico antimalarial activity. Methods: Synthesis of the chalcone derivativ...
Cholera toxin A1 residues single alanine substitutional mutation and effect on activity with stimulatory G protein
Cholera is a well-known gastrointestinal infection. The cholera toxin is an important pathological substance in pathogenesis of cholera diarrhea. Cholera toxin is composed of catalytic A1 subunit, an A2 linker, and a hom...
Bioaccumulation of heavy metals in some tissues of croaker fish from oil spilled rivers of Niger Delta region, Nigeria
Objective: To investigate the level of heavy metals (Cu, Zn, Fe Mn Ni, Pb and Cd) in muscles, gills and liver tissue of Croaker fish from oil spilled rivers of Bonny and Finima, Niger Delta region, Nigeria. Methods: Twen...
Clinical features of severe malaria: Protective effect of mixed plasmodial malaria
Objective: To investigate clinically severe malaria patients with Plasmodium falciparum (P. falciparum), Plasmodium vivax (P. vivax) and mixed species infections. Methods: This study was conducted at Dr. Saiful Anwar Gen...